Idaho Falls to Lapwai is 527.6 miles and takes about 9h 45m via US 12 and I 90, with a fuel budget near $93 and enough daylight to finish in a day. This trip stays within Idaho, moving from the Mountain West region to another part of the Mountain West. It's a long-haul drive, best suited for those who enjoy extended time behind the wheel. With a recommended two days for the trip, you can break up the nearly 10-hour drive comfortably. Consider this route if you're looking for a straightforward, mostly highway journey across the state.
Trip Pace
Best split across 2 days
Treat the return leg as its own travel day rather than an afterthought.
Break Rhythm
2 planned breaks
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
263.8 miles from Idaho Falls, ID
A natural place for your longest stop of the day
, about 4h 13m into the drive
.
Main Roads
Road
Distance
Duration
Veterans Memorial Highway
198.2 mi
3h 6m
US 12
164.1 mi
3h 42m
I 90
112.1 mi
1h 46m
Lolo Creek Road
32.6 mi
39m
US 95
4.8 mi
5m
US Highway 93 South
4 mi
5m
Brooks Street
3.3 mi
4m
Bitteroot Road
3 mi
3m
Longest stretch:
Veterans Memorial Highway
— 198.2 mi, about 3h 6m
Traffic on I-15
Hour-of-day weekday pattern from 20 FHWA count stations on your route.
Peak
2 PM
~171 veh/hr typical
· worst 271
Quietest
2 AM
~15 veh/hr
Peak-to-quiet ratio
11.4×
busier at peak than in the quiet hours
12a6anoon6p11p
Averaged across 52 weeks of 2023 FHWA Travel Monitoring Analysis System data. Weekday hours only (Mon–Fri).
Turn-by-Turn Driving Directions
Step-by-step road directions between Idaho Falls, ID and Lapwai, ID.
1
Start on Charleston Lane
152 ft·8 sec·Charleston Lane
2
Turn right onto West Stone Run Lane
241 ft·15 sec·West Stone Run Lane
3
Turn left onto Stonebrook Lane
466 ft·14 sec·Stonebrook Lane
4
Continue on South Boulevard
1.0 mi·2 min·South Boulevard
5
Turn left onto East 17th Street
0.6 mi·52 sec·East 17th Street
6
Continue on Pancheri Drive
0.4 mi·47 sec·Pancheri Drive
7
Turn right onto South Utah Avenue
0.1 mi·15 sec·South Utah Avenue
8
Enter roundabout onto South Utah Avenue
222 ft·4 sec·South Utah Avenue
9
Continue on South Utah Avenue
0.5 mi·58 sec·South Utah Avenue
10
Turn left onto I 15 BUS; US 20 BUS
0.3 mi·34 sec·West Broadway Street
11
Take the ramp onto I 15 BUS; US 20
0.2 mi·27 sec·I 15 BUS; US 20
Exit 118Toward I15 North: Roberts, Butte
12
Merge onto I 15; US 20
198 mi·3 hr 6 min·Veterans Memorial Highway
13
Take the exit
0.5 mi·1 min
Toward I 90 West: Missoula
14
Merge onto I 90
112 mi·1 hr 46 min·I 90
Toward I 90 West: Missoula
15
Take the exit onto I 90 Business; US 12
0.2 mi·26 sec·I 90 Business; US 12
Toward US 12 West, I 90 Business
16
Enter roundabout onto I 90 Bus; US 12
206 ft·2 sec·Van Buren Street
17
Continue on I 90 Bus; US 12
212 ft·3 sec·Van Buren Street
18
Enter roundabout onto I 90 Bus; US 12
92 ft·1 sec·Van Buren Street
19
Continue on I 90 Bus; US 12
0.1 mi·11 sec·Van Buren Street
20
Turn right onto I 90 Bus; US 12
0.2 mi·22 sec·East Broadway Street
21
Turn left onto US 12
0.3 mi·18 sec·Madison Street
Use the left / straight lanes.
22
Continue on US 12
0.1 mi·9 sec·Arthur Avenue
23
Turn right onto US 12
0.4 mi·35 sec·South 5th Street East
24
Turn left onto US 12
0.1 mi·28 sec·South Higgins Avenue
25
Turn right onto US 12
3.3 mi·4 min·Brooks Street
Use the right lane.
26
Continue on US 12; US 93
3.0 mi·3 min·Bitteroot Road
Use the straight / right lanes.
27
Continue on US 12; US 93
4.0 mi·5 min·US Highway 93 South
28
Turn right onto US 12
33 mi·39 min·Lolo Creek Road
29
Continue on US 12
164 mi·3 hr 42 min·US 12
30
Merge onto US 95
4.8 mi·5 min·US 95
31
Turn right onto Main Street North
0.3 mi·37 sec·Main Street North
32
Arrive at destination
Main Street South
Trip Plan
Given the 9h 45m duration, this trip is best split over two days to avoid fatigue. Aim to depart early on your first day, allowing you to cover a good portion of the 527.6 miles and complete about two of your planned stops. The longest stretch without services could be around 198.2 miles on Veterans Memorial Highway, so ensure you have adequate fuel before embarking on that segment. Plan your overnight stop strategically; a midpoint around the 5-hour mark would be ideal. Keep an eye on your fuel gauge, especially as you transition from Veterans Memorial Highway to US 12 and I 90, as rest areas and services can be spaced out.
Morning Departure
Start early — leave by 6-7 AM to arrive at a reasonable hour.
Evening Departure
This is a long drive — plan for a morning departure or consider splitting it into two days.
This drive is better paced as a 2-day trip.
Plan roughly 2 meaningful breaks for fuel, food, and rest.
The halfway point lands around 263.8 miles from Idaho Falls, ID, or about 4h 13m into the drive.
The longest continuous stretch on this route runs about 198.2 miles.
Consider an overnight stop or starting very early.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 116 miles or 1h 53m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 263.8 miles or 4h 13m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Overnight split
Day 1 wrap after about 263.8 miles or 4h 13m
Stop before fatigue turns the last few hours into a grind. You want day two to start fresh, not just resumed.
Final approach
Final hour starts around 8h 24m
Traffic, exits, and arrival timing usually matter more near Lapwai, ID than in the middle of the route.
Before You Leave
+
Open the route before leaving Idaho Falls, ID so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
+
Pick one backup stop option before the midpoint in case traffic changes your pacing.
+
Treat this as a 2-day road trip and book the overnight stop before the busiest arrival window.
Day 1
Settle into the route from Idaho Falls, ID
Aim for roughly 264 miles and 4.9 hours of wheel time on this day.
Day 2
Finish the approach into Lapwai, ID
Aim for roughly 264 miles and 4.9 hours of wheel time on this day.
Your first comfortable stop window is around 116 miles from Idaho Falls, ID.
This route usually feels better as a 2-day drive than as one long push.
Plan about 2 real breaks rather than only quick fuel stops.
The longest stretch is on Veterans Memorial Highway for about 198.2 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Place data sourced from public business listings. Hours and availability may vary.
Heads-up: tricky spots
5 of 21
5 decision points cluster between mile 0 and 314.7 — GPS handles the exact turns, but know they're coming. Your lane choice matters more than the turn itself.
5
0 mi into trip|~0m in|West Stone Run Lane
Turn right onto West Stone Run Lane
Navigation decision point
5
0.1 mi into trip|~0m in|Stonebrook Lane
Turn left onto Stonebrook Lane
Navigation decision point
6
2.2 mi into trip|~5m in|South Utah Avenue
Enter roundabout onto South Utah Avenue
Roundabout - know your exit number before entering
7
3 mi into trip|~6m in|I 15 BUS; US 20
Take the ramp onto I 15 BUS; US 20 toward I15 North: Roberts, Butte
Multiple destination signs - pick the right one
Exit 118
Toward I15 North: Roberts, Butte
7
314.7 mi into trip|~5h 2m in|US 12 / Madison Street
Turn left onto US 12 / Madison Street
Lane positioning matters here
Use the left / straight lanes.
Fuel & Cost
Regular Gas
$92.75 one way
$185.49 round trip
$4.47/gal25.4 MPG avg185 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.67
$96.98
$193.97
premium
$4.99
$103.65
$207.30
diesel
$5.35
$111.13
$222.26
No toll roads detected on this route.
Estimated Trip Cost (one way, 1 person)
Fuel
$93
Hotel (1n)
$80–$140
Meals
$50–$100
Total
$223–$333
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 184.6 kg one way.
Prices: EIA weekly data, 2026-06-01.
EV Charging Along Route
20 DC fast chargers
· Coverage: excellent
Snake River Landing - Tesla Supercharger
Idaho Falls, ID
Tesla
8 DCFC
Jan's Cafe - Tesla Supercharger
Lima, MT
Tesla
8 DCFC
Town Pump Travel Center - Tesla Supercharger
Butte, MT
Tesla
8 DCFC
Best Western Plus Grant Creek Inn - Tesla Supercharger
Station data from NREL Alternative Fuel Stations database.
Driving Electric?
About $55 in charging
· 1 stop
· 66% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
158.3
1
$55.40
$25.32
Efficient EV
131.9
1
$46.17
$21.10
EV Truck/SUV
211
2
$73.86
$33.77
Gas CO2
185 kg
EV CO2
62 kg (66% less)
Plan for 1 charging stop. A 30-minute DC fast charge mid-route should be enough to complete the trip comfortably.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Forecast as of Jun 3, 2026
Origin
Idaho Falls, ID
Afternoon
in Idaho Falls on Wednesday
Local time
1:06 PM
MDT
Current temp
78°F
Mostly Sunny
WSW 6 mph2% chanceLive forecast
Red Flag Warning
Red Flag Warning issued June 3 at 8:26AM MDT until June 3 at 9:00PM MDT by NWS Boise ID
Destination
Lapwai, ID
Afternoon
in Lapwai on Wednesday
Local time
12:06 PM
PDT
Current temp
83°F
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
N 1 to 6 mph33% chanceLive forecast
Red Flag Warning
Red Flag Warning issued June 3 at 8:26AM MDT until June 3 at 9:00PM MDT by NWS Boise ID
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
For long drives, weather on day two can matter just as much as conditions at departure, so check the whole travel window rather than only the first day.
Time zone
1 hour earlier
The destination clock does not match departure time, so double-check hotel check-in windows and late arrival plans.
Temperature spread
5 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
9h 45m on the road
This is long enough that the arrival forecast matters almost as much as departure conditions. Recheck both ends before you roll.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
National Parks Near This Route
Worth a detour if your schedule allows.
Nez Perce National Historical Park
National Historical Park
Since time immemorial, the valleys, prairies, mountains, and plateaus of the inland northwest have been home to the nimíipuu (Nez Perce) people. Extremely resilient, they survived the settling of the...
6 mi from route
~15 min detour
Free
near mile 454.8
Park data from the National Park Service API. Alerts update every 2 hours.
More Details
What kind of drive is this?
You'll spend 54% of this drive on highways. The longest continuous stretch on a single highway is 198.2 miles, occurring on Veterans Memorial Highway. After this, you'll transition to US 12 and then I 90, meaning you'll experience a mix of high-speed cruising and potentially more varied road conditions as you approach your destination. This suggests a significant portion of your travel will be on major interstates and highways, with a substantial segment of rural cruising.
54% highway, the rest on surface roads — varied driving throughout.
32 navigation steps total — most of the decisions cluster near the start and finish.
Longest single stretch: 198.2 mi on Veterans Memorial Highway.
How Hard Is This Drive?
4/10
At 9h 45m, this is a long-haul route where pacing matters more than any single turn. There are only a few real navigation decisions along the way. The trickiest moment comes early in the drive near West Stone Run Lane.
Driving Effort4/10
Easy - simple navigation with a manageable amount of wheel time
Balances navigation complexity with total wheel time.
The route itself is not hard, but at 9h 45m, endurance matters. Plan breaks every 2-3 hours. The 21 decision points are all manageable with basic attention.
Where does it get tricky?
The main spots that need attention: near the start (West Stone Run Lane): Navigation decision point; at 0.1 miles (Stonebrook Lane): Navigation decision point; at 2.2 miles (South Utah Avenue): Roundabout - know your exit number before entering.
Idaho Falls is a city in Eastern Idaho. Idaho Falls serves as the commercial, cultural, and healthcare hub for Eastern Idaho. The city attracts many tourists visiting nearby Yellowstone and Grand Teton National Parks, Jackson Hole, and fishing on the Snake River. Due to its proximity to high-profile outdoor destinations, in 2009, Idaho Falls was named to National Geographic's list of the "100 Best Adventure Towns".
Top landmarks
•New Sweden School — school building in Idaho Falls, United States of America
•Bonneville Hotel — hotel building in Idaho Falls, Idaho
•Bonneville County Courthouse — historic courthouse in Idaho Falls, Idaho, USA
Long-haul drive route profile with national parks nearby.
Frequently Asked Questions
The longest stretch is about 198.2 miles on Veterans Memorial Highway. The full list of main roads is in the Roads section above.
Yes — a 2-day pace is more comfortable than one long haul. A sensible stopping point is after roughly 264 miles on day one.
Yes — we found about 16 rest areas or service plazas within a short detour of the route (from OpenStreetMap). See the Rest Stops tab under Nearby Places for locations and mile markers. Plan to stretch, use the bathroom, and top off fluids every 2–3 hours on longer drives.
It helps. This is a long drive, so arriving tired and in the dark compounds. If the last hour of the trip is on surface roads or mountain grades, aim to arrive at Lapwai, ID before sunset when you can. Check the Trip Plan for departure windows that land you in daylight.
Only with planning. This is a long drive for kids — consider splitting it into two days rather than pushing through. Plan at least 2 meaningful breaks. There are 16 rest areas along the route for bathroom stops.
Mostly yes along the main roads, but rural stretches through ID can have sparse or no coverage. Before you leave, download offline Google Maps or Apple Maps for the route, and consider downloading music or podcasts instead of streaming. If you depend on data for navigation, keep a paper backup of the turn-by-turn directions.
The main spots that need attention: near the start (West Stone Run Lane): Navigation decision point; at 0.1 miles (Stonebrook Lane): Navigation decision point; at 2.2 miles (South Utah Avenue): Roundabout - know your exit number before entering.
Yes — Nez Perce National Historical Park. See the National Parks section for detour distances and tips on detours.
Not recommended in a single day. At 9.8 hours each way, a round trip means 19.5 hours of driving — that is an unsafe level of fatigue for most drivers. Plan at least one night at Lapwai, ID before the return drive.
